I believe there is a good reason why the plots of the last three books allow and require their protagonists to preach at length.

The simple plot does not allow for much acting nor is it especially gripping.

This plot allows one to detect both between-group and within-group patterns.

This plot allows samples of precipitation-originated water to be identified along with general information about the climate in which it originated.

The plot, about Jews living in Russia near the beginning of the 20th century, allowed Robbins to return to his religious roots.

But the plot doesn't allow him room to come naturally to the realization that he has misunderstood the crucial emotional relationships of his youth.

The final plot allows the symmetry of the crystal to be established.

She concluded that the plot allowed for a "good source of laughs in the smartly written" episode.

The plot usually allows the hero at least a moment of romantic triumph, a hint of hope that nice guys don't always have to finish last.

Standard woodcut illustrations were repeated, often even within a single book, wherever the plot allowed such repetition.